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GCC Code Coverage Report

Directory:	src/		Exec	Total	Coverage
File:	src/resources/openglimagehelper.cpp	Lines:	0	163	0.0 %
Date:	2021-03-17	Branches:	0	143	0.0 %


/*
 *  The ManaPlus Client
 *  Copyright (C) 2004-2009  The Mana World Development Team
 *  Copyright (C) 2009-2010  The Mana Developers
 *  Copyright (C) 2011-2019  The ManaPlus Developers
 *  Copyright (C) 2019-2021  Andrei Karas
 *
 *  This file is part of The ManaPlus Client.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "resources/openglimagehelper.h"

#ifdef USE_OPENGL

#include "graphicsmanager.h"

#include "render/mobileopengl2graphics.h"
#include "render/mobileopenglgraphics.h"
#include "render/modernopenglgraphics.h"
#ifdef __native_client__
#include "render/opengl/naclglfunctions.h"
#endif  // __native_client__
#include "render/normalopenglgraphics.h"
#include "render/safeopenglgraphics.h"

#include "render/opengl/mgl.h"
#include "render/opengl/mglcheck.h"

#include "resources/dye/dye.h"
#include "resources/dye/dyepalette.h"

#include "resources/image/image.h"

#include "utils/checkutils.h"
#include "utils/sdlcheckutils.h"

#include "debug.h"

#ifndef SDL_BIG_ENDIAN
#error missing SDL_endian.h
#endif  // SDL_BYTEORDER

int OpenGLImageHelper::mTextureType = 0;
int OpenGLImageHelper::mInternalTextureType = GL_RGBA8;
int OpenGLImageHelper::mTextureSize = 0;
bool OpenGLImageHelper::mBlur = true;
bool OpenGLImageHelper::mUseTextureSampler = false;

OpenGLImageHelper::~OpenGLImageHelper()
{
    glDeleteTextures(static_cast<GLsizei>(texturesSize - mFreeTextureIndex),
        &mTextures[mFreeTextureIndex]);
}

Image *OpenGLImageHelper::load(SDL_RWops *const rw, Dye const &dye)
{
    SDL_Surface *const tmpImage = loadPng(rw);
    if (tmpImage == nullptr)
    {
        reportAlways("Error, image load failed: %s", SDL_GetError())
        return nullptr;
    }

    SDL_Surface *const surf = convertTo32Bit(tmpImage);
    MSDL_FreeSurface(tmpImage);
    if (surf == nullptr)
        return nullptr;

    uint32_t *pixels = static_cast<uint32_t *>(surf->pixels);
    const int type = dye.getType();

    switch (type)
    {
        case 1:
        {
            const DyePalette *const pal = dye.getSPalete();
            if (pal != nullptr)
                DYEPALETTEP(pal, SOGLColor)(pixels, surf->w * surf->h);
            break;
        }
        case 2:
        {
            const DyePalette *const pal = dye.getAPalete();
            if (pal != nullptr)
                DYEPALETTEP(pal, AOGLColor)(pixels, surf->w * surf->h);
            break;
        }
        case 0:
        default:
        {
            dye.normalOGLDye(pixels, surf->w * surf->h);
            break;
        }
    }

    Image *const image = loadSurface(surf);
    MSDL_FreeSurface(surf);
    return image;
}

Image *OpenGLImageHelper::loadSurface(SDL_Surface *const tmpImage)
{
    return glLoad(tmpImage);
}

Image *OpenGLImageHelper::createTextSurface(SDL_Surface *const tmpImage,
                                            const int width, const int height,
                                            const float alpha)
{
    if (tmpImage == nullptr)
        return nullptr;

    Image *const img = glLoad(tmpImage, width, height);
    if (img != nullptr)
        img->setAlpha(alpha);
    return img;
}

int OpenGLImageHelper::powerOfTwo(const int input)
{
    int value = 1;
    while (value < input && value < mTextureSize)
        value <<= 1;
    return value >= mTextureSize ? mTextureSize : value;
}

SDL_Surface *OpenGLImageHelper::convertSurfaceNormalize(SDL_Surface *tmpImage,
                                                        int width, int height)
{
    if (tmpImage == nullptr)
        return nullptr;

    int realWidth = powerOfTwo(width);
    int realHeight = powerOfTwo(height);

    if (realWidth < width || realHeight < height)
    {
        reportAlways("Warning: image too large, cropping to %dx%d texture!",
            tmpImage->w, tmpImage->h)
    }

#ifdef USE_SDL2
    SDL_SetSurfaceAlphaMod(tmpImage, SDL_ALPHA_OPAQUE);
#else  // USE_SDL2

    // Make sure the alpha channel is not used, but copied to destination
    SDL_SetAlpha(tmpImage, 0, SDL_ALPHA_OPAQUE);
#endif  // USE_SDL2

    // Determine 32-bit masks based on byte order
    uint32_t rmask, gmask, bmask, amask;
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
    rmask = 0xff000000U;
    gmask = 0x00ff0000U;
    bmask = 0x0000ff00U;
    amask = 0x000000ffU;
#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN

    rmask = 0x000000ffU;
    gmask = 0x0000ff00U;
    bmask = 0x00ff0000U;
    amask = 0xff000000U;
#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN

    if (tmpImage->format->BitsPerPixel != 32
        || realWidth != width || realHeight != height
        || rmask != tmpImage->format->Rmask
        || gmask != tmpImage->format->Gmask
        || amask != tmpImage->format->Amask)
    {
        SDL_Surface *oldImage = tmpImage;
#ifdef USE_SDL2
        SDL_SetSurfaceBlendMode(oldImage, SDL_BLENDMODE_NONE);
#endif  // USE_SDL2

        tmpImage = MSDL_CreateRGBSurface(SDL_SWSURFACE, realWidth, realHeight,
            32, rmask, gmask, bmask, amask);

        if (tmpImage == nullptr)
        {
            reportAlways("Error, image convert failed: out of memory")
            return nullptr;
        }
        SDL_BlitSurface(oldImage, nullptr, tmpImage, nullptr);
    }
    return tmpImage;
}

SDL_Surface *OpenGLImageHelper::convertSurface(SDL_Surface *tmpImage,
                                               int width, int height)
{
    if (tmpImage == nullptr)
        return nullptr;

#ifdef USE_SDL2
    SDL_SetSurfaceAlphaMod(tmpImage, SDL_ALPHA_OPAQUE);
#else  // USE_SDL2

    // Make sure the alpha channel is not used, but copied to destination
    SDL_SetAlpha(tmpImage, 0, SDL_ALPHA_OPAQUE);
#endif  // USE_SDL2

    // Determine 32-bit masks based on byte order
    uint32_t rmask, gmask, bmask, amask;
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
    rmask = 0xff000000U;
    gmask = 0x00ff0000U;
    bmask = 0x0000ff00U;
    amask = 0x000000ffU;
#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN

    rmask = 0x000000ffU;
    gmask = 0x0000ff00U;
    bmask = 0x00ff0000U;
    amask = 0xff000000U;
#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN

    if (tmpImage->format->BitsPerPixel != 32
        || rmask != tmpImage->format->Rmask
        || gmask != tmpImage->format->Gmask
        || amask != tmpImage->format->Amask)
    {
        SDL_Surface *oldImage = tmpImage;
#ifdef USE_SDL2
        SDL_SetSurfaceBlendMode(oldImage, SDL_BLENDMODE_NONE);
#endif  // USE_SDL2

        tmpImage = MSDL_CreateRGBSurface(SDL_SWSURFACE, width, height,
            32, rmask, gmask, bmask, amask);

        if (tmpImage == nullptr)
        {
            reportAlways("Error, image convert failed: out of memory")
            return nullptr;
        }
        SDL_BlitSurface(oldImage, nullptr, tmpImage, nullptr);
    }
    return tmpImage;
}

void OpenGLImageHelper::bindTexture(const GLuint texture)
{
    switch (mUseOpenGL)
    {
#ifdef ANDROID
        case RENDER_NORMAL_OPENGL:
        case RENDER_SAFE_OPENGL:
        case RENDER_MODERN_OPENGL:
        case RENDER_GLES2_OPENGL:
            break;
        case RENDER_GLES_OPENGL:
            MobileOpenGLGraphics::bindTexture(mTextureType, texture);
            break;
#elif defined(__native_client__) || defined(__SWITCH__)
        case RENDER_NORMAL_OPENGL:
        case RENDER_MODERN_OPENGL:
        case RENDER_GLES_OPENGL:
            break;
        case RENDER_SAFE_OPENGL:
#ifndef __SWITCH__
            SafeOpenGLGraphics::bindTexture(mTextureType, texture);
#endif
            break;
        case RENDER_GLES2_OPENGL:
            MobileOpenGL2Graphics::bindTexture(mTextureType, texture);
            break;
#else  // ANDROID

        case RENDER_NORMAL_OPENGL:
            NormalOpenGLGraphics::bindTexture(mTextureType, texture);
            break;
        case RENDER_MODERN_OPENGL:
            ModernOpenGLGraphics::bindTexture(mTextureType, texture);
            break;
        case RENDER_SAFE_OPENGL:
            SafeOpenGLGraphics::bindTexture(mTextureType, texture);
            break;
        case RENDER_GLES_OPENGL:
            MobileOpenGLGraphics::bindTexture(mTextureType, texture);
            break;
        case RENDER_GLES2_OPENGL:
            MobileOpenGL2Graphics::bindTexture(mTextureType, texture);
            break;
#endif  // ANDROID

        case RENDER_SOFTWARE:
        case RENDER_SDL2_DEFAULT:
        case RENDER_NULL:
        case RENDER_LAST:
        default:
            reportAlways("Unknown OpenGL backend: %d", mUseOpenGL)
            break;
    }
}

Image *OpenGLImageHelper::glLoad(SDL_Surface *tmpImage,
                                 int width, int height)
{
    if (tmpImage == nullptr)
        return nullptr;

    BLOCK_START("OpenGLImageHelper::glLoad")
    // Flush current error flag.
    graphicsManager.getLastError();

    if (width == 0)
        width = tmpImage->w;
    if (height == 0)
        height = tmpImage->h;

    SDL_Surface *oldImage = tmpImage;
    tmpImage = convertSurfaceNormalize(tmpImage, width, height);
    if (tmpImage == nullptr)
        return nullptr;

    const int realWidth = tmpImage->w;
    const int realHeight = tmpImage->h;

    const GLuint texture = getNewTexture();
    bindTexture(texture);

    if (SDL_MUSTLOCK(tmpImage))
        SDL_LockSurface(tmpImage);

    if (mUseOpenGL != RENDER_MODERN_OPENGL &&
        mUseOpenGL != RENDER_GLES_OPENGL &&
        mUseOpenGL != RENDER_GLES2_OPENGL)
    {
#ifndef __SWITCH__
        glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
#endif
#ifdef OPENGLERRORS
        graphicsManager.logError();
#endif  // OPENGLERRORS
    }

    if (!mUseTextureSampler)
    {
        if (mBlur)
        {
            mglTexParameteri(mTextureType, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
#ifdef OPENGLERRORS
            graphicsManager.logError();
#endif  // OPENGLERRORS

            mglTexParameteri(mTextureType, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
#ifdef OPENGLERRORS
            graphicsManager.logError();
#endif  // OPENGLERRORS
        }
        else
        {
            mglTexParameteri(mTextureType, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
#ifdef OPENGLERRORS
            graphicsManager.logError();
#endif  // OPENGLERRORS

            mglTexParameteri(mTextureType, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
#ifdef OPENGLERRORS
            graphicsManager.logError();
#endif  // OPENGLERRORS
        }
    }
#if !defined(ANDROID) && !defined(__native_client__)
    mglTexParameteri(mTextureType, GL_TEXTURE_MAX_LEVEL, 0);
#endif  // !defined(ANDROID) && !defined(__native_client__)

    mglTexImage2D(mTextureType, 0, mInternalTextureType,
        tmpImage->w, tmpImage->h,
        0, GL_RGBA, GL_UNSIGNED_BYTE, tmpImage->pixels);
#ifdef OPENGLERRORS
    graphicsManager.logError();
#endif  // OPENGLERRORS

#ifdef DEBUG_OPENGL
/*
    disabled for now, because debugger can't show it
    if (isGLNotNull(mglLabelObject))
    {
        const char *const text = "image text";
        mglLabelObject(GL_TEXTURE, texture, strlen(text), text);
    }
*/
#endif  // DEBUG_OPENGL

/*
    GLint compressed;
    glGetTexLevelParameteriv(mTextureType, 0,
        GL_TEXTURE_COMPRESSED_ARB, &compressed);
    if (compressed)
        logger->log("image compressed");
    else
        logger->log("image not compressed");
*/

#ifdef DEBUG_OPENGL_LEAKS
    textures_count ++;
#endif  // DEBUG_OPENGL_LEAKS

    if (SDL_MUSTLOCK(tmpImage))
        SDL_UnlockSurface(tmpImage);

    if (oldImage != tmpImage)
        MSDL_FreeSurface(tmpImage);

    GLenum error = graphicsManager.getLastError();
    if (error != 0U)
    {
        std::string errmsg = GraphicsManager::errorToString(error);
        reportAlways("Error: Image GL import failed: %s (%u)",
            errmsg.c_str(), error)
//        return nullptr;
    }

    BLOCK_END("OpenGLImageHelper::glLoad")
    return new Image(texture, width, height, realWidth, realHeight);
}

void OpenGLImageHelper::initTextureSampler(const GLint id)
{
    if (mBlur)
    {
        mglSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
        mglSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    }
    else
    {
        mglSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
        mglSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
    }
}

SDL_Surface *OpenGLImageHelper::create32BitSurface(int width,
                                                   int height) const
{
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
    const uint32_t rmask = 0xff000000U;
    const uint32_t gmask = 0x00ff0000U;
    const uint32_t bmask = 0x0000ff00U;
    const uint32_t amask = 0x000000ffU;
#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN

    const uint32_t rmask = 0x000000ffU;
    const uint32_t gmask = 0x0000ff00U;
    const uint32_t bmask = 0x00ff0000U;
    const uint32_t amask = 0xff000000U;
#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN

    width = powerOfTwo(width);
    height = powerOfTwo(height);

    return MSDL_CreateRGBSurface(SDL_SWSURFACE,
        width, height, 32, rmask, gmask, bmask, amask);
}

GLuint OpenGLImageHelper::getNewTexture()
{
    GLuint texture = mTextures[mFreeTextureIndex];
    mFreeTextureIndex ++;
    if (mFreeTextureIndex == texturesSize)
    {
        mFreeTextureIndex = 0;
        postInit();
    }
    return texture;
}

void OpenGLImageHelper::postInit()
{
    mglGenTextures(texturesSize, &mTextures[mFreeTextureIndex]);
}

void OpenGLImageHelper::invalidate(const GLuint textureId)
{
    if (isGLNotNull(mglInvalidateTexImage))
    {
        logger->log("invalidate: %u", textureId);
        mglInvalidateTexImage(textureId, 0);
    }
}

void OpenGLImageHelper::copySurfaceToImage(const Image *const image,
                                           const int x, const int y,
                                           SDL_Surface *surface) const
{
    if (surface == nullptr || image == nullptr)
        return;

    SDL_Surface *const oldSurface = surface;
    surface = convertSurface(surface, surface->w, surface->h);
    if (surface == nullptr)
        return;

    // +++ probably need combine
    // mglTextureSubImage2D and mglTextureSubImage2DEXT
    if (mglTextureSubImage2D != nullptr)
    {
        mglTextureSubImage2D(image->mGLImage,
            0,
            x, y,
            surface->w, surface->h,
            GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);
    }
    else
    {
        mglTextureSubImage2DEXT(image->mGLImage,
            mTextureType, 0,
            x, y,
            surface->w, surface->h,
            GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);
    }
#ifdef OPENGLERRORS
    graphicsManager.logError();
#endif  // OPENGLERRORS

    if (surface != oldSurface)
        MSDL_FreeSurface(surface);
}

#endif  // USE_OPENGL


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/*
2			* The ManaPlus Client
3			* Copyright (C) 2004-2009 The Mana World Development Team
4			* Copyright (C) 2009-2010 The Mana Developers
5			* Copyright (C) 2011-2019 The ManaPlus Developers
6			* Copyright (C) 2019-2021 Andrei Karas
7			*
8			* This file is part of The ManaPlus Client.
9			*
10			* This program is free software; you can redistribute it and/or modify
11			* it under the terms of the GNU General Public License as published by
12			* the Free Software Foundation; either version 2 of the License, or
13			* any later version.
14			*
15			* This program is distributed in the hope that it will be useful,
16			* but WITHOUT ANY WARRANTY; without even the implied warranty of
17			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18			* GNU General Public License for more details.
19			*
20			* You should have received a copy of the GNU General Public License
21			* along with this program. If not, see <http://www.gnu.org/licenses/>.
22			*/
23
24			#include "resources/openglimagehelper.h"
25
26			#ifdef USE_OPENGL
27
28			#include "graphicsmanager.h"
29
30			#include "render/mobileopengl2graphics.h"
31			#include "render/mobileopenglgraphics.h"
32			#include "render/modernopenglgraphics.h"
33			#ifdef __native_client__
34			#include "render/opengl/naclglfunctions.h"
35			#endif // __native_client__
36			#include "render/normalopenglgraphics.h"
37			#include "render/safeopenglgraphics.h"
38
39			#include "render/opengl/mgl.h"
40			#include "render/opengl/mglcheck.h"
41
42			#include "resources/dye/dye.h"
43			#include "resources/dye/dyepalette.h"
44
45			#include "resources/image/image.h"
46
47			#include "utils/checkutils.h"
48			#include "utils/sdlcheckutils.h"
49
50			#include "debug.h"
51
52			#ifndef SDL_BIG_ENDIAN
53			#error missing SDL_endian.h
54			#endif // SDL_BYTEORDER
55
56			int OpenGLImageHelper::mTextureType = 0;
57			int OpenGLImageHelper::mInternalTextureType = GL_RGBA8;
58			int OpenGLImageHelper::mTextureSize = 0;
59			bool OpenGLImageHelper::mBlur = true;
60			bool OpenGLImageHelper::mUseTextureSampler = false;
61
62			OpenGLImageHelper::~OpenGLImageHelper()
63			{
64			glDeleteTextures(static_cast<GLsizei>(texturesSize - mFreeTextureIndex),
65			&mTextures[mFreeTextureIndex]);
66			}
67
68			Image OpenGLImageHelper::load(SDL_RWops const rw, Dye const &dye)
69			{
70			SDL_Surface *const tmpImage = loadPng(rw);
71			if (tmpImage == nullptr)
72			{
73			reportAlways("Error, image load failed: %s", SDL_GetError())
74			return nullptr;
75			}
76
77			SDL_Surface *const surf = convertTo32Bit(tmpImage);
78			MSDL_FreeSurface(tmpImage);
79			if (surf == nullptr)
80			return nullptr;
81
82			uint32_t pixels = static_cast<uint32_t >(surf->pixels);
83			const int type = dye.getType();
84
85			switch (type)
86			{
87			case 1:
88			{
89			const DyePalette *const pal = dye.getSPalete();
90			if (pal != nullptr)
91			DYEPALETTEP(pal, SOGLColor)(pixels, surf->w * surf->h);
92			break;
93			}
94			case 2:
95			{
96			const DyePalette *const pal = dye.getAPalete();
97			if (pal != nullptr)
98			DYEPALETTEP(pal, AOGLColor)(pixels, surf->w * surf->h);
99			break;
100			}
101			case 0:
102			default:
103			{
104			dye.normalOGLDye(pixels, surf->w * surf->h);
105			break;
106			}
107			}
108
109			Image *const image = loadSurface(surf);
110			MSDL_FreeSurface(surf);
111			return image;
112			}
113
114			Image OpenGLImageHelper::loadSurface(SDL_Surface const tmpImage)
115			{
116			return glLoad(tmpImage);
117			}
118
119			Image OpenGLImageHelper::createTextSurface(SDL_Surface const tmpImage,
120			const int width, const int height,
121			const float alpha)
122			{
123			if (tmpImage == nullptr)
124			return nullptr;
125
126			Image *const img = glLoad(tmpImage, width, height);
127			if (img != nullptr)
128			img->setAlpha(alpha);
129			return img;
130			}
131
132			int OpenGLImageHelper::powerOfTwo(const int input)
133			{
134			int value = 1;
135			while (value < input && value < mTextureSize)
136			value <<= 1;
137			return value >= mTextureSize ? mTextureSize : value;
138			}
139
140			SDL_Surface OpenGLImageHelper::convertSurfaceNormalize(SDL_Surface tmpImage,
141			int width, int height)
142			{
143			if (tmpImage == nullptr)
144			return nullptr;
145
146			int realWidth = powerOfTwo(width);
147			int realHeight = powerOfTwo(height);
148
149			if (realWidth < width \|\| realHeight < height)
150			{
151			reportAlways("Warning: image too large, cropping to %dx%d texture!",
152			tmpImage->w, tmpImage->h)
153			}
154
155			#ifdef USE_SDL2
156			SDL_SetSurfaceAlphaMod(tmpImage, SDL_ALPHA_OPAQUE);
157			#else // USE_SDL2
158
159			// Make sure the alpha channel is not used, but copied to destination
160			SDL_SetAlpha(tmpImage, 0, SDL_ALPHA_OPAQUE);
161			#endif // USE_SDL2
162
163			// Determine 32-bit masks based on byte order
164			uint32_t rmask, gmask, bmask, amask;
165			#if SDL_BYTEORDER == SDL_BIG_ENDIAN
166			rmask = 0xff000000U;
167			gmask = 0x00ff0000U;
168			bmask = 0x0000ff00U;
169			amask = 0x000000ffU;
170			#else // SDL_BYTEORDER == SDL_BIG_ENDIAN
171
172			rmask = 0x000000ffU;
173			gmask = 0x0000ff00U;
174			bmask = 0x00ff0000U;
175			amask = 0xff000000U;
176			#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN
177
178			if (tmpImage->format->BitsPerPixel != 32
179			\|\| realWidth != width \|\| realHeight != height
180			\|\| rmask != tmpImage->format->Rmask
181			\|\| gmask != tmpImage->format->Gmask
182			\|\| amask != tmpImage->format->Amask)
183			{
184			SDL_Surface *oldImage = tmpImage;
185			#ifdef USE_SDL2
186			SDL_SetSurfaceBlendMode(oldImage, SDL_BLENDMODE_NONE);
187			#endif // USE_SDL2
188
189			tmpImage = MSDL_CreateRGBSurface(SDL_SWSURFACE, realWidth, realHeight,
190			32, rmask, gmask, bmask, amask);
191
192			if (tmpImage == nullptr)
193			{
194			reportAlways("Error, image convert failed: out of memory")
195			return nullptr;
196			}
197			SDL_BlitSurface(oldImage, nullptr, tmpImage, nullptr);
198			}
199			return tmpImage;
200			}
201
202			SDL_Surface OpenGLImageHelper::convertSurface(SDL_Surface tmpImage,
203			int width, int height)
204			{
205			if (tmpImage == nullptr)
206			return nullptr;
207
208			#ifdef USE_SDL2
209			SDL_SetSurfaceAlphaMod(tmpImage, SDL_ALPHA_OPAQUE);
210			#else // USE_SDL2
211
212			// Make sure the alpha channel is not used, but copied to destination
213			SDL_SetAlpha(tmpImage, 0, SDL_ALPHA_OPAQUE);
214			#endif // USE_SDL2
215
216			// Determine 32-bit masks based on byte order
217			uint32_t rmask, gmask, bmask, amask;
218			#if SDL_BYTEORDER == SDL_BIG_ENDIAN
219			rmask = 0xff000000U;
220			gmask = 0x00ff0000U;
221			bmask = 0x0000ff00U;
222			amask = 0x000000ffU;
223			#else // SDL_BYTEORDER == SDL_BIG_ENDIAN
224
225			rmask = 0x000000ffU;
226			gmask = 0x0000ff00U;
227			bmask = 0x00ff0000U;
228			amask = 0xff000000U;
229			#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN
230
231			if (tmpImage->format->BitsPerPixel != 32
232			\|\| rmask != tmpImage->format->Rmask
233			\|\| gmask != tmpImage->format->Gmask
234			\|\| amask != tmpImage->format->Amask)
235			{
236			SDL_Surface *oldImage = tmpImage;
237			#ifdef USE_SDL2
238			SDL_SetSurfaceBlendMode(oldImage, SDL_BLENDMODE_NONE);
239			#endif // USE_SDL2
240
241			tmpImage = MSDL_CreateRGBSurface(SDL_SWSURFACE, width, height,
242			32, rmask, gmask, bmask, amask);
243
244			if (tmpImage == nullptr)
245			{
246			reportAlways("Error, image convert failed: out of memory")
247			return nullptr;
248			}
249			SDL_BlitSurface(oldImage, nullptr, tmpImage, nullptr);
250			}
251			return tmpImage;
252			}
253
254			void OpenGLImageHelper::bindTexture(const GLuint texture)
255			{
256			switch (mUseOpenGL)
257			{
258			#ifdef ANDROID
259			case RENDER_NORMAL_OPENGL:
260			case RENDER_SAFE_OPENGL:
261			case RENDER_MODERN_OPENGL:
262			case RENDER_GLES2_OPENGL:
263			break;
264			case RENDER_GLES_OPENGL:
265			MobileOpenGLGraphics::bindTexture(mTextureType, texture);
266			break;
267			#elif defined(__native_client__) \|\| defined(__SWITCH__)
268			case RENDER_NORMAL_OPENGL:
269			case RENDER_MODERN_OPENGL:
270			case RENDER_GLES_OPENGL:
271			break;
272			case RENDER_SAFE_OPENGL:
273			#ifndef __SWITCH__
274			SafeOpenGLGraphics::bindTexture(mTextureType, texture);
275			#endif
276			break;
277			case RENDER_GLES2_OPENGL:
278			MobileOpenGL2Graphics::bindTexture(mTextureType, texture);
279			break;
280			#else // ANDROID
281
282			case RENDER_NORMAL_OPENGL:
283			NormalOpenGLGraphics::bindTexture(mTextureType, texture);
284			break;
285			case RENDER_MODERN_OPENGL:
286			ModernOpenGLGraphics::bindTexture(mTextureType, texture);
287			break;
288			case RENDER_SAFE_OPENGL:
289			SafeOpenGLGraphics::bindTexture(mTextureType, texture);
290			break;
291			case RENDER_GLES_OPENGL:
292			MobileOpenGLGraphics::bindTexture(mTextureType, texture);
293			break;
294			case RENDER_GLES2_OPENGL:
295			MobileOpenGL2Graphics::bindTexture(mTextureType, texture);
296			break;
297			#endif // ANDROID
298
299			case RENDER_SOFTWARE:
300			case RENDER_SDL2_DEFAULT:
301			case RENDER_NULL:
302			case RENDER_LAST:
303			default:
304			reportAlways("Unknown OpenGL backend: %d", mUseOpenGL)
305			break;
306			}
307			}
308
309			Image OpenGLImageHelper::glLoad(SDL_Surface tmpImage,
310			int width, int height)
311			{
312			if (tmpImage == nullptr)
313			return nullptr;
314
315			BLOCK_START("OpenGLImageHelper::glLoad")
316			// Flush current error flag.
317			graphicsManager.getLastError();
318
319			if (width == 0)
320			width = tmpImage->w;
321			if (height == 0)
322			height = tmpImage->h;
323
324			SDL_Surface *oldImage = tmpImage;
325			tmpImage = convertSurfaceNormalize(tmpImage, width, height);
326			if (tmpImage == nullptr)
327			return nullptr;
328
329			const int realWidth = tmpImage->w;
330			const int realHeight = tmpImage->h;
331
332			const GLuint texture = getNewTexture();
333			bindTexture(texture);
334
335			if (SDL_MUSTLOCK(tmpImage))
336			SDL_LockSurface(tmpImage);
337
338			if (mUseOpenGL != RENDER_MODERN_OPENGL &&
339			mUseOpenGL != RENDER_GLES_OPENGL &&
340			mUseOpenGL != RENDER_GLES2_OPENGL)
341			{
342			#ifndef __SWITCH__
343			glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
344			#endif
345			#ifdef OPENGLERRORS
346			graphicsManager.logError();
347			#endif // OPENGLERRORS
348			}
349
350			if (!mUseTextureSampler)
351			{
352			if (mBlur)
353			{
354			mglTexParameteri(mTextureType, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
355			#ifdef OPENGLERRORS
356			graphicsManager.logError();
357			#endif // OPENGLERRORS
358
359			mglTexParameteri(mTextureType, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
360			#ifdef OPENGLERRORS
361			graphicsManager.logError();
362			#endif // OPENGLERRORS
363			}
364			else
365			{
366			mglTexParameteri(mTextureType, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
367			#ifdef OPENGLERRORS
368			graphicsManager.logError();
369			#endif // OPENGLERRORS
370
371			mglTexParameteri(mTextureType, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
372			#ifdef OPENGLERRORS
373			graphicsManager.logError();
374			#endif // OPENGLERRORS
375			}
376			}
377			#if !defined(ANDROID) && !defined(__native_client__)
378			mglTexParameteri(mTextureType, GL_TEXTURE_MAX_LEVEL, 0);
379			#endif // !defined(ANDROID) && !defined(__native_client__)
380
381			mglTexImage2D(mTextureType, 0, mInternalTextureType,
382			tmpImage->w, tmpImage->h,
383			0, GL_RGBA, GL_UNSIGNED_BYTE, tmpImage->pixels);
384			#ifdef OPENGLERRORS
385			graphicsManager.logError();
386			#endif // OPENGLERRORS
387
388			#ifdef DEBUG_OPENGL
389			/*
390			disabled for now, because debugger can't show it
391			if (isGLNotNull(mglLabelObject))
392			{
393			const char *const text = "image text";
394			mglLabelObject(GL_TEXTURE, texture, strlen(text), text);
395			}
396			*/
397			#endif // DEBUG_OPENGL
398
399			/*
400			GLint compressed;
401			glGetTexLevelParameteriv(mTextureType, 0,
402			GL_TEXTURE_COMPRESSED_ARB, &compressed);
403			if (compressed)
404			logger->log("image compressed");
405			else
406			logger->log("image not compressed");
407			*/
408
409			#ifdef DEBUG_OPENGL_LEAKS
410			textures_count ++;
411			#endif // DEBUG_OPENGL_LEAKS
412
413			if (SDL_MUSTLOCK(tmpImage))
414			SDL_UnlockSurface(tmpImage);
415
416			if (oldImage != tmpImage)
417			MSDL_FreeSurface(tmpImage);
418
419			GLenum error = graphicsManager.getLastError();
420			if (error != 0U)
421			{
422			std::string errmsg = GraphicsManager::errorToString(error);
423			reportAlways("Error: Image GL import failed: %s (%u)",
424			errmsg.c_str(), error)
425			// return nullptr;
426			}
427
428			BLOCK_END("OpenGLImageHelper::glLoad")
429			return new Image(texture, width, height, realWidth, realHeight);
430			}
431
432			void OpenGLImageHelper::initTextureSampler(const GLint id)
433			{
434			if (mBlur)
435			{
436			mglSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
437			mglSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
438			}
439			else
440			{
441			mglSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
442			mglSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
443			}
444			}
445
446			SDL_Surface *OpenGLImageHelper::create32BitSurface(int width,
447			int height) const
448			{
449			#if SDL_BYTEORDER == SDL_BIG_ENDIAN
450			const uint32_t rmask = 0xff000000U;
451			const uint32_t gmask = 0x00ff0000U;
452			const uint32_t bmask = 0x0000ff00U;
453			const uint32_t amask = 0x000000ffU;
454			#else // SDL_BYTEORDER == SDL_BIG_ENDIAN
455
456			const uint32_t rmask = 0x000000ffU;
457			const uint32_t gmask = 0x0000ff00U;
458			const uint32_t bmask = 0x00ff0000U;
459			const uint32_t amask = 0xff000000U;
460			#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN
461
462			width = powerOfTwo(width);
463			height = powerOfTwo(height);
464
465			return MSDL_CreateRGBSurface(SDL_SWSURFACE,
466			width, height, 32, rmask, gmask, bmask, amask);
467			}
468
469			GLuint OpenGLImageHelper::getNewTexture()
470			{
471			GLuint texture = mTextures[mFreeTextureIndex];
472			mFreeTextureIndex ++;
473			if (mFreeTextureIndex == texturesSize)
474			{
475			mFreeTextureIndex = 0;
476			postInit();
477			}
478			return texture;
479			}
480
481			void OpenGLImageHelper::postInit()
482			{
483			mglGenTextures(texturesSize, &mTextures[mFreeTextureIndex]);
484			}
485
486			void OpenGLImageHelper::invalidate(const GLuint textureId)
487			{
488			if (isGLNotNull(mglInvalidateTexImage))
489			{
490			logger->log("invalidate: %u", textureId);
491			mglInvalidateTexImage(textureId, 0);
492			}
493			}
494
495			void OpenGLImageHelper::copySurfaceToImage(const Image *const image,
496			const int x, const int y,
497			SDL_Surface *surface) const
498			{
499			if (surface == nullptr \|\| image == nullptr)
500			return;
501
502			SDL_Surface *const oldSurface = surface;
503			surface = convertSurface(surface, surface->w, surface->h);
504			if (surface == nullptr)
505			return;
506
507			// +++ probably need combine
508			// mglTextureSubImage2D and mglTextureSubImage2DEXT
509			if (mglTextureSubImage2D != nullptr)
510			{
511			mglTextureSubImage2D(image->mGLImage,
512			0,
513			x, y,
514			surface->w, surface->h,
515			GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);
516			}
517			else
518			{
519			mglTextureSubImage2DEXT(image->mGLImage,
520			mTextureType, 0,
521			x, y,
522			surface->w, surface->h,
523			GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);
524			}
525			#ifdef OPENGLERRORS
526			graphicsManager.logError();
527			#endif // OPENGLERRORS
528
529			if (surface != oldSurface)
530			MSDL_FreeSurface(surface);
531			}
532
533			#endif // USE_OPENGL